Allocate 'ObjCMethodList' objects (owned by Sema) using Sema's BumpPtrAllocator.  Previously they were not getting freed.  Fixes <rdar://problem/7635663>.

llvm-svn: 95834
diff --git a/clang/lib/Frontend/PCHReader.cpp b/clang/lib/Frontend/PCHReader.cpp
index 655d59f..2a22132 100644
--- a/clang/lib/Frontend/PCHReader.cpp
+++ b/clang/lib/Frontend/PCHReader.cpp
@@ -436,7 +436,9 @@
         continue;
       }
 
-      Prev->Next = new ObjCMethodList(Method, 0);
+      ObjCMethodList *Mem =
+        Reader.getSema()->BumpAlloc.Allocate<ObjCMethodList>();
+      Prev->Next = new (Mem) ObjCMethodList(Method, 0);
       Prev = Prev->Next;
     }
 
@@ -452,7 +454,9 @@
         continue;
       }
 
-      Prev->Next = new ObjCMethodList(Method, 0);
+      ObjCMethodList *Mem =
+        Reader.getSema()->BumpAlloc.Allocate<ObjCMethodList>();
+      Prev->Next = new (Mem) ObjCMethodList(Method, 0);
       Prev = Prev->Next;
     }